ORG 0000H
AJMP MAIN
MAIN:
MOV R2,#50
MOV R1,#00H
MOV R3,#00H
MOV DPTR,#0000H
CLR C
D0:
LCALL ADCINT
LCALL DIGTAL
LCALL DISP
; LCALL CONSTART
D1:
JB P2.3,D5 //ÅD¶Ï¼ó1¼üêÇ·ñ°′ÏÂ￡¿
CALL KEY1
D5:
JB P2.2,D0 //ÅD¶Ï¼õ1¼üêÇ·ñ°′ÏÂ￡¿
CALL KEY2
LJMP D0
//A/D×a»»3ìDò
ADCINT :
MOV R1,#30H
MOV DPTR,#7FF8H
MOV R7,#08H
ADC: MOVX @DPTR,A
HER:
JB P3.0,HER
MOVX A,@DPTR
MOV @R1,A
INC DPTR
INC R1
DJNZ R7,ADC
RETI
//ÏÔê¾×ó3ìDò
DISP:
MOV A,R2
MOV B,#10
DIV AB
MOV 20H,A
MOV 21H,B
MOV DPTR,#TABLE
SETB P2.5 //ê®Î»ÏÔê¾
CLR P2.4
MOV A,20H
MOVC A,@A+DPTR
MOV P1,A
CALL DELAY
SETB P2.4 //¸öλÏÔê¾
CLR P2.5
MOV A,21H
MOV DPTR,#TABLE
MOVC A,@A+DPTR
MOV P1,A
CALL DELAY
RET
//¼ó1×ó3ìDò
KEY1:
CALL DELAY1
MOV A,R2
INC A
MOV R2,A
K1: JNB P2.3,K1
RET
//¼õ1×ó3ìDò
KEY2:
CALL DELAY1
MOV A,R2
DEC A
MOV R2,A
K2:
JNB P2.2,K2
RET
//A/D×a»»êy¾Y′|àí
DIGTAL:
MOV A,30H
MOV R3,#40H
MOV DPTR,#TABLE1
MOVC A,@A+DPTR
MOV R3,A
TABLE1: DB 32H,33H,34H,35H,36H,37H,38H,39H
DB 83H,86H,88H,8BH,8DH,90H,92H,95H
DB 3AH,3BH,3CH,3DH,3EH,3FH,40H
DB 97H,9AH,9CH,9FH,0A1H,0A4H,0A6H
DB 41H,42H,43H,44H,45H,46H,47H,48H
DB 0A8H,0ABH,0ADH,0B0H,0B2H,0B5H,0B7H,0BAH
DB 49H,4AH,4BH,4CH,4DH,4EH,4FH,50H,51H,52H
DB 0BCH,0BFH,0C1H,0C4H,0C6H,0C9H,0CBH,0CEH,0D0H,0D3H
DB 53H,54H,55H,56H,57H,58H,59H,5AH,5BH,5CH
DB 0D5H,0D7H,0DAH,0DCH,0DFH,0E1H,0E4H,0E6H,0E9H,0EBH
DB 5DH,5EH,5FH,60H,61H,62H,63H
DB 0EEH,0F0H,0F3H,0F5H,0F8H,0FAH,0FDH
數(shù)據(jù)處理子程序
CONSTART:
MOV A,R2
ADD A,#5
CJNE A,40H,L1
CLR P2.1
LJMP D2
L1:
JC L2
CLR C
SUBB A,#10
CJNE A,40H,L3
SETB P2.1
LJMP D2
L2:
CLR P2.1
LJMP D1
L3:
JC L4
SETB P2.1
LJMP D1
L4:
LJMP D2
RET
DELAY:
MOV R6,#5
D2:
MOV R5,#249
DL0:
NOP
NOP
DJNZ R5,DL0
DJNZ R6,D2
RET
DELAY1:
MOV R6,#10
D3:
MOV R5,#249
DL1:
NOP
NOP
DJNZ R5,DL1
DJNZ R6,D3
RET
TABLE:
DB 3FH,06H,5BH,4FH,66H ;
DB 6DH,7DH,07H,7FH,6FH
END
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